Figure 4: Catalytic CO2 fixation via oxidative cyclometallation with low-valent Ni and Pd complexes.
From: Using carbon dioxide as a building block in organic synthesis
(a,b) The generation of metallacycle complexes via the oxidative cyclometallation of Ni(0) complexes with CO2 and unsaturated bonds. (c) Ni-catalysed [2+2+2] cycloaddition of CO2 and diynes. (e) Pd-catalysed telomerization of 1,3-butadiene with CO2. (f,g) Aresta’s complex catalysed the carboxylation of organozinc reagents with CO2.
